package com.bootdo.common.aspect;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

@Aspect
@Component
public class WebLogAspect {

    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Pointcut("execution( * com.bootdo..controller.*.*(..))")//两个..代表所有子目录，最后括号里的两个..代表所有参数
    public void logPointCut() {
    }

    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
//      接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        if (logger.isDebugEnabled()) {
//          记录下请求内容
            logger.debug("请求地址: {}", request.getRequestURL().toString());
            logger.debug("HTTP METHOD: {}", request.getMethod());
//          获取真实的ip地址
//          logger.info("IP : {}", IPAddressUtil.getClientIpAddress(request));
            logger.debug("CLASS_METHOD: {}.{}", joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName());
            logger.debug("参数: {} ", Arrays.toString(joinPoint.getArgs()));
        }

    }

    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = System.currentTimeMillis();
        Object ob = pjp.proceed();// ob 为方法的返回值
        if (logger.isDebugEnabled()) {
            logger.debug("耗时 : {}", System.currentTimeMillis() - startTime);
        }
        return ob;
    }

    @AfterReturning(returning = "ret", pointcut = "logPointCut()")// returning的值和doAfterReturning的参数名一致
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容(返回值太复杂时，打印的是物理存储空间的地址)
        if (logger.isDebugEnabled()) {
            logger.debug("返回值 : " + ret);
        }
    }
}
